Method for routing events from key strokes in a multi-processing

Details Method for routing events from key strokes in a multi-processing Method for routing events from key strokes in a multi-processing

1987-08-24

1990-01-23

Zache, Raulfe B.

Boots, shoes, and leggings

36492763, 3649286, 364928, 364942, 3649422, 3649483, 36494832, 364521, 340721, G06F 323, G06F 946

Patent

active

048962902

ABSTRACT:
A computer system in which multiple processes may run concurrently includes a window manager for displaying windows associated with different processes. One of the processes represented by a window may be designated as active. Keystrokes are translated by a keyboard driver to events represented by keycodes. The keycodes are routed to processes with which they are associated by reference to a routing table. Unless otherwise indicated, a keycode is routed to the active process. Where a keycode is associated with and transferred to the window manager, subsequent keycodes are stored in a typeahead buffer. The window manager may modify the routing table. After completion of the window manager operation, all keycodes remaining in the buffer are routed to their associated processes as determined by the modified routing table.

REFERENCES:
patent: 4253145 (1981-02-01), Goldberg
patent: 4385366 (1983-05-01), Housey, Jr.
patent: 4470038 (1984-09-01), Amano et al.
patent: 4500386 (1985-10-01), Hirosawa et al.
patent: 4555775 (1985-11-01), Pike
patent: 4658351 (1987-04-01), Teng
patent: 4719566 (1988-01-01), Kelley
patent: 4733351 (1988-03-01), Peirent
patent: 4761642 (1988-08-01), Huntzinger

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